In order to avoid eating yet another soggy pizza, consider using a pizza stone. The stone absorbs moisture from the dough and provides an evenly heated surface, thus resulting in a crispier crust. Before placing the pizza on the stone, set the stone itself in the middle of the lowest oven shelf and let it heat up. Never place a pizza stone in a preheated oven because this could result in your stone cracking. Once the stone is hot, place the pizza on the stone and let it cook. When the pizza is finished cooking, make sure to use a pizza peel to remove the pizza. Do not try to remove the stone from the oven until it has cooled. Wait until the stone has cooled before cleaning it. Completely submerge the stone in plain, warm water for about 20 minutes. This will thoroughly saturate the stone. Scrape off any excess food that is left on the surface. Rinse the stone and allow it to dry overnight. If your pizza stone displays any type of odor, repeat the same soaking and drying routine for a few more nights.

Source: http://whatscookingamerica.net